Abstract:
:Thyroid hormone, thyroxine (T4) binding to glycosylated human serum albumin (G-HSA), and native human serum albumin (HSA) were studied as a function of pH using the fluorescence method. T4 binding affinity for G-HSA was remarkably reduced in an alkaline pH as compared with the native HSA. The thermodynamic parameters for binding are estimated at pH 7.5: (a) for G-HSA, delta G = -8.50 +/- 0.04 kcal mol-1 (30 degrees C), delta H = -5.2 kcal mol-1, delta S = +11 e.u.; (b) for HSA, delta G = -8.89 +/- 0.04 kcal mol-1 (30 degrees C), delta H = -3.5 kcal mol-1, delta S = +18 e.u. These results suggest that the glycosylation of HSA causes a variation in the electrostatic interaction between T4 and HSA.
journal_name
Biol Pharm Bulljournal_title
Biological & pharmaceutical bulletinauthors
Okabe N,Yoshida Sdoi
10.1248/bpb.18.154subject
Has Abstractpub_date
1995-01-01 00:00:00pages
154-5issue
1eissn
0918-6158issn
1347-5215journal_volume
18pub_type
杂志文章abstract::In vitro release behavior and cytotoxic activity, and in vivo plasma disposition of newly synthesized macromolecular derivatives of cisplatin (CDDP) were investigated and compared with CDDP. The derivatives included oxidized dextran conjugate of CDDP (OX-Dex/CDDP) and dicarboxymethylated dextran conjugate of CDDP (DCM...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.22.756
更新日期:1999-07-01 00:00:00
abstract::A close relationship between rat liver regeneration and the concentration ratio of spermidine to spermine (spd:spm) was demonstrated by the oral administration of trans-4-methylcyclohexylamine (MCHA), a specific inhibitor of putrescine aminopropyltransferase. A decrease in recovery rate of remnant liver with MCHA, as ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.863
更新日期:2006-05-01 00:00:00
abstract::Phenolic compounds, in general, exhibit antioxidant and antibacterial activities. We studied antimicrobial activity of the phenolic antioxidants, propofol (2,6-diisopropylphenol), tocopherol, eugenol, butylated hydroxyanisole (BHA), and several of their dimer compounds. Dipropofol (dimer of 2,6-diisopropylphenol) show...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.1120
更新日期:2005-06-01 00:00:00
abstract::In this paper we investigated the vascular activity and possible mechanism of Orientin, from bamboo leaves (Phyllostachys nigra), in isolated thoracic aortic rings from New Zealand rabbit. Among the four compounds, studied, only Orientin relaxed phenylephrine-induced contractions with an IC50 value of 2.28 microM in t...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.37
更新日期:2005-01-01 00:00:00
abstract::When hot-water extracts of mushroom Agaricus brazei MURRILL fruiting bodies (Agaricus extracts) were administered orally into Meth A-bearing mice, tumor growth was significantly inhibited compared with controls given water orally. Treatment with Agaricus extracts for five successive days significantly increased natura...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.27.404
更新日期:2004-03-01 00:00:00
abstract::To find new antipruritic herbal medicines for pruritus, we screened the methanol extracts of seven herbal medicines which have been used to treat dermatologic diseases, testing them on mouse models of acute and chronic itch. When administrated perorally (p.o.) at a dose of 200 mg/kg, methanol extracts of Sophora flave...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.722
更新日期:2003-05-01 00:00:00
abstract::Cry j 1 is one of the major allergens in Japanese cedar pollen. We attempt high throughput analysis and comprehensive identification of the linear IgE epitopes of Cry j 1. A series of overlapping synthetic Cry j 1 peptides chemically spotted on cellulose membrane was probed with sera from patients in Japan and United ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.1496
更新日期:2005-08-01 00:00:00
abstract::Meiosis activating sterol (MAS), the intermediate of cholesterol biosynthesis, is an important substance to stimulate oocytes maturation in FSH-induced signal transduction pathway. Lanosterol 14alpha-demethylase (CYP51) converts lanosterol to MAS. Although MAS is firstly isolated from bovine testis, the information ab...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.430
更新日期:2006-03-01 00:00:00
abstract::The inhibitory effects of some flavonoids on the infectivity of rotavirus, which predominantly causes sporadic diarrhea in infants and young children, were investigated. Among tested flavonoids, diosmin and hesperidin had the most potent inhibitory activity on rotavirus infection. The fifty percent inhibitory concentr...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.23.1122
更新日期:2000-09-01 00:00:00
abstract::Many plant-derived flavonoids including quercetin exhibit antioxidant and antiinflammatory properties. Proinflammatory cytokines and oxidative stress play an important role in acute pancreatitis. This study aimed to evaluate the effect of quercetin on cerulein-induced acute pancreatitis in mice. Animal groups were pre...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.1534
更新日期:2010-01-01 00:00:00
abstract::The oral cavity contains almost half of the commensal bacterial population present in the human body. An increase in the number of these microorganisms may result in systemic diseases such as infective endocarditis and aspiration pneumonia as well as oral infections. It is essential to control the total numbers of the...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.638
更新日期:2011-01-01 00:00:00
abstract::High-resolution deep tissue imaging is possible with two-photon excitation microscopy. With the combined application of two-photon imaging and perfusion with a polar fluorescent tracer, we have established a method to detect exocytic events inside secretory tissues. This method displays the spatiotemporal distribution...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章,评审
doi:10.1248/bpb.b14-00880
更新日期:2015-01-01 00:00:00
abstract::We have developed a mass microscope in which a microscope is combined with high-resolution matrix assisted laser desorption/ionization-imaging mass spectrometry (MALDI-IMS). This technique is a powerful tool for investigating the spatial distribution of biomolecules without the need for any time-consuming extraction, ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章,评审
doi:10.1248/bpb.b212007
更新日期:2012-01-01 00:00:00
abstract::D-Aspartate (D-Asp), a free D-amino acid found in mammals, plays crucial roles in the neuroendocrine, endocrine, and central nervous systems. Recent studies have implicated D-Asp in the pathophysiology of infertility and N-methyl-D-Asp receptor-related diseases. D-Asp oxidase (DDO), a degradative enzyme that is stereo...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b14-00690
更新日期:2015-01-01 00:00:00
abstract::The present study was aimed at kinetically characterizing the carrier-mediated transport systems for D-glucose and taurocholate in the rat colon, compared with their respective counterparts in the small intestine. The transport of these compounds was evaluated by measuring the initial uptake into everted intestinal ti...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.899
更新日期:2003-06-01 00:00:00
abstract::Some P450 enzymes are expressed not only in the liver but also in the small intestine, and these enzymes play an important role in first-pass drug metabolism in the small intestine. Cytochrome P450 (CYP)2C19 has been confirmed to exist in the small intestine of white people, but not yet in Japanese. We investigated th...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.71
更新日期:2011-01-01 00:00:00
abstract::Utilizing starch-containing alginate beads, a novel drug delivery system (DDS) was developed. With the starch inside, the composite bead could be dried in its original bead shape and handled in the dried state. By employing alginate multi-coating strategy on the starch-alginate beads, detained or controlled release wa...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.394
更新日期:2005-02-01 00:00:00
abstract::The antiproliferative constituents in the MeOH extracts of the aerial parts of Lippia dulcis Trev. and Lippia canescens Kunth (Verbenaceae) were investigated. Activity-guided chemical investigation of the MeOH extracts resulted in the isolation of the three bisabolane-type sesquiterpenes [(+)-hernandulcin (1), (-)-epi...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.25.920
更新日期:2002-07-01 00:00:00
abstract::This study investigated the effects of compounds isolated from 70% ethanol (EtOH) extraction of Smilax china L. (SCE), a plant belonging to the family Smilacaceae on nicotine-induced endothelial dysfunction (ED) in human umbilical vein endothelial cells. We isolated 10 compounds from ethyl acetate (EtOAc) fraction of ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b15-00997
更新日期:2016-01-01 00:00:00
abstract::This study was conducted to investigate the effects of the extracts of green romaine lettuce (GRE) on sleep enhancement. GRE contains 1071.7 and 199.2 µg/g of extracts of lactucin and lactucopicrin, respectively, known as sleep enhancement substances. When 100 mg/kg of GRE was administered orally, sleep latency and du...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b19-00454
更新日期:2019-01-01 00:00:00
abstract::The permeability of insulin across Xenopus pulmonary membrane and the effects of various absorption enhancers on insulin permeability were examined using an in vitro Ussing chamber technique. Absorption enhancers used in this study were sodium caprate (NaCap), sodium glycocholate (NaGC), sodium salicylate (NaSal) and ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.24.385
更新日期:2001-04-01 00:00:00
abstract::Arsenicals are known to be toxic and carcinogenic in humans. Inorganic arsenicals are enzymatically methylated to monomethylarsonic acid (MMAsV) and dimethylarsinic acid (DMAsV), which are the major pentavalent methyl arsenic metabolites. Recent reports indicate that trivalent methyl arsenicals are produced through me...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.1827
更新日期:2005-10-01 00:00:00
abstract::The number of patients with colitis has been increasing year by year. Recently, intestinal inflammation, as one of the factors for its onset, has been demonstrated to be induced by P2X7 receptor-mediated activation of colonic immune cells such as mast cells. Activation of P2X7 receptor (P2X7R) is known to be inhibited...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b17-00143
更新日期:2017-01-01 00:00:00
abstract::Mume fruit, the Japanese apricot (Prunus mume SIEB. et ZUCC.), is popular in Japan and is mostly consumed in the pickled form called umeboshi. This fruit is known to have anti-microbial properties, but the principal constituents responsible for the antimicrobial properties have not yet been elucidated. We investigated...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b17-00711
更新日期:2018-01-01 00:00:00
abstract::Alzheimer's disease (AD) is pathologically characterized by accumulation of amyloid β (Aβ) and hyperphosphorylated tau, and thereby induction of neuronal cell death. The Aβ-induced neuronal cell death has been shown to occur by several modes, such as apoptosis, necrosis, and necroptosis. Interestingly, in AD patients,...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b20-00082
更新日期:2020-01-01 00:00:00
abstract::Protein purification is a key technique for the identification of novel sensory nerve-specific proteins. A 35 kDa protein, the sensory neuronal specific protein, was isolated and purified from rabbit spinal ganglia and sensory fibers by homogenizing and deriving soluble extracts, followed by ion exchange chromatograph...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.23.542
更新日期:2000-05-01 00:00:00
abstract::The mechanism of inactivation of cholinesterase (EC 3.1.1.8) by the Cu2+ -ascorbic acid (AsA) system was investigated. Incubation of the enzyme with the Cu2+ -AsA system under aerobic conditions resulted in an irreversible loss of enzyme activity. At low concentrations of Cu2+, the extent of inactivation showed the sa...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.18.1179
更新日期:1995-09-01 00:00:00
abstract::In the present study, we showed the inhibition of motility by trifluoromethyl ketone (TF) derivatives (1-8) in Proteus vulgaris (P. vulgaris) cultures. Among them, 1-(2-benzoxazoyl)-3,3,3-trifluoro-2-propanone (1) showed a much stronger inhibitory effect on the motility of P. vulgaris than other TF compounds at 10% MI...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.27.1462
更新日期:2004-09-01 00:00:00
abstract::An alkaloid piperine isolated from the Piper Nigrum was found to inhibit lipid droplet accumulation in mouse macrophages, and especially inhibited cholesteryl ester (CE) synthesis (IC50: 25 microM). The metabolism of cholesterol from lysosome to lipid droplet was inhibited with a similar IC50 (18 microM), indicating t...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.31.1063
更新日期:2008-06-01 00:00:00
abstract::The mature form of rat adrenodoxin (Ad) was purified from a heterologous direct expression system in Escherichia coli with a yield of 56 mg/l culture. The purified Ad showed a A414/A280 ratio of 0.91 and the sequence of 10 amino terminal residues was identical with that of authentic rat Ad. By Time of Flight/Mass spec...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.21.1106
更新日期:1998-10-01 00:00:00